<div class="problemindexholder" problemindex="A">
 <div class="ttypography">
  <div class="problem-statement">
   <div class="header">
    <div class="title">
     A. k-rounding
    </div>
    <div class="time-limit">
     <div class="property-title">
      time limit per test
     </div>
     1 second
    </div>
    <div class="memory-limit">
     <div class="property-title">
      memory limit per test
     </div>
     256 megabytes
    </div>
    <div class="input-file">
     <div class="property-title">
      input
     </div>
     standard input
    </div>
    <div class="output-file">
     <div class="property-title">
      output
     </div>
     standard output
    </div>
   </div>
   <div>
    <p>
     For a given positive integer
     <span class="tex-span">
      <i>
       n
      </i>
     </span>
     denote its
     <span class="tex-span">
      <i>
       k
      </i>
     </span>
     -rounding as the minimum positive integer
     <span class="tex-span">
      <i>
       x
      </i>
     </span>
     , such that
     <span class="tex-span">
      <i>
       x
      </i>
     </span>
     ends with
     <span class="tex-span">
      <i>
       k
      </i>
     </span>
     or more zeros in base
     <span class="tex-span">
      10
     </span>
     and is divisible by
     <span class="tex-span">
      <i>
       n
      </i>
     </span>
     .
    </p>
    <p>
     For example,
     <span class="tex-span">
      4
     </span>
     -rounding of
     <span class="tex-span">
      375
     </span>
     is
     <span class="tex-span">
      375·80 = 30000
     </span>
     .
     <span class="tex-span">
      30000
     </span>
     is the minimum integer such that it ends with
     <span class="tex-span">
      4
     </span>
     or more zeros and is divisible by
     <span class="tex-span">
      375
     </span>
     .
    </p>
    <p>
     Write a program that will perform the
     <span class="tex-span">
      <i>
       k
      </i>
     </span>
     -rounding of
     <span class="tex-span">
      <i>
       n
      </i>
     </span>
     .
    </p>
   </div>
   <div class="input-specification">
    <div class="section-title">
     Input
    </div>
    <p>
     The only line contains two integers
     <span class="tex-span">
      <i>
       n
      </i>
     </span>
     and
     <span class="tex-span">
      <i>
       k
      </i>
     </span>
     (
     <span class="tex-span">
      1 ≤
      <i>
       n
      </i>
      ≤ 10
      <sup class="upper-index">
       9
      </sup>
     </span>
     ,
     <span class="tex-span">
      0 ≤
      <i>
       k
      </i>
      ≤ 8
     </span>
     ).
    </p>
   </div>
   <div class="output-specification">
    <div class="section-title">
     Output
    </div>
    <p>
     Print the
     <span class="tex-span">
      <i>
       k
      </i>
     </span>
     -rounding of
     <span class="tex-span">
      <i>
       n
      </i>
     </span>
     .
    </p>
   </div>
   <div class="sample-tests">
    <div class="section-title">
     Examples
    </div>
    <div class="sample-test">
     <div class="input">
      <div class="title">
       Input
      </div>
      <pre>375 4<br/></pre>
     </div>
     <div class="output">
      <div class="title">
       Output
      </div>
      <pre>30000<br/></pre>
     </div>
     <div class="input">
      <div class="title">
       Input
      </div>
      <pre>10000 1<br/></pre>
     </div>
     <div class="output">
      <div class="title">
       Output
      </div>
      <pre>10000<br/></pre>
     </div>
     <div class="input">
      <div class="title">
       Input
      </div>
      <pre>38101 0<br/></pre>
     </div>
     <div class="output">
      <div class="title">
       Output
      </div>
      <pre>38101<br/></pre>
     </div>
     <div class="input">
      <div class="title">
       Input
      </div>
      <pre>123456789 8<br/></pre>
     </div>
     <div class="output">
      <div class="title">
       Output
      </div>
      <pre>12345678900000000<br/></pre>
     </div>
    </div>
   </div>
  </div>
  <p>
  </p>
 </div>
</div>
